THE EFFECTS OF WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF SUGAR BEET AND WATER PRODUCTIVITY

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NOURJOU A.

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Journal: Iranian Journal of Irrigation and Drainage Year:2008 | Volume:2 | Issue:1 Page(s): 31-42

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Title

THE EFFECTS OF WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF SUGAR BEET AND WATER PRODUCTIVITY

Author(s)

NOURJOU A. | Issue Writer Certificate

Keywords

DEFICIT IRRIGATIONQ2

SUGAR BEETQ3

WATER PRODUCTIVITYQ2

WATER USE EFFICIENCYQ3

Abstract

Scarcity of water resources and growing competition for water will reduce its availability for irrigation. At the same time, the need to meet the growing demand for food will require increased crop production from less water. DEFICIT IRRIGATION is one way of maximizing WUE and WUEI for higher yields per unit of irrigation water applied. This study was conducted to evaluate the effects of DEFICIT IRRIGATION on yield and yield components of SUGAR BEET and WUE and WP. The study was carried out, using split-plot design on base of randomized complete blocks with 3 irrigation treatments of levels of irrigation (100%, 75% and 50%), 3 treatment of intervals (7,10,14 days) in 4 replications in Meandoab Agricultural Research station in production season 1999-2000.there was a significant difference (1% significant level) among DEFICIT IRRIGATION and interval irrigation on root yield and the sugar yield. The highest root yield and sugar yield were obtained by D7I100 treatments, 67.7 and 10.2 t/ha respectively, with 797mm of Et. 25% and 50% DEFICIT IRRIGATION caused decreasing of root yield, 13.3% and 33.3% respectively, and sugar yield, 11.1% and 28.9% respectively, with 77.5% and 55.8% water applied by full irrigation (I100) treatment. Increasing interval from 7 to 10 and 14 day caused decreasing of root yield by 3.5% and 8.6% and water used by 8.0% and 17.0%. In full irrigation (I100), 175 and 150 treatments, WUE was 8.4, 9.7 and 11.2 kg.ha-1 respectively. Considering WATER PRODUCTIVITY and irrigation management, D10175 treatment recommended in the region. In this treatment, with 29.0% saving of water irrigation, the root yield and sugar yield only decreased 23.0% and 17.1% respectively in compared with D7I100 treatment. The crop response factor (ky) was determined as 0.712 and 0.823 for 2 years. The root yield increased as the applied irrigation water increased, and a linear relationship was found between these 2 parameters.

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APA: Copy

NOURJOU, A.. (2008). THE EFFECTS OF WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF SUGAR BEET AND WATER PRODUCTIVITY. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 2(1), 31-42. SID. https://sid.ir/paper/131621/en

Vancouver: Copy

NOURJOU A.. THE EFFECTS OF WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF SUGAR BEET AND WATER PRODUCTIVITY. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2008;2(1):31-42. Available from: https://sid.ir/paper/131621/en

IEEE: Copy

A. NOURJOU, “THE EFFECTS OF WATER DEFICIT ON YIELD AND YIELD COMPONENTS OF SUGAR BEET AND WATER PRODUCTIVITY,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 2, no. 1, pp. 31–42, 2008, [Online]. Available: https://sid.ir/paper/131621/en

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